brucker.ea:hol-z:2002 BookSection Augsburg 2002 jul FM-TOOLS 2002 33-38 BruckerAchimD FriedrichStefan RittingerFrank WolffBurkhart HanebergDominik SchellhornGerhard ReifWolfgang HOL-Z 2.0: A Proof Environment for Z-Specifications We present a proof environment for the specification language Z on top of Isabelle/HOL. It comprises a \LaTeX-based front end (including the integrated type-checker ZETA), generic facilities to generate proof obligations and improved proof support for the logical embedding HOL-Z, namely for the schema-calculus and structural Z proofs.